676 struct ResultStack {  struct
677   ResultStack(SDNode *Inp)  in ResultStack()  argument
679   SDNode *InpNode;
680   MVT InpTy;
681   unsigned push(const NodeTemplate &Res) {  in push()
685   unsigned push(unsigned Opc, MVT Ty, std::vector<OpRef> &&Ops) {  in push()
692   bool empty() const { return List.empty(); }  in empty()
693   unsigned size() const { return List.size(); }  in size()
694   unsigned top() const { return size()-1; }  in top()
695   const NodeTemplate &operator[](unsigned I) const { return List[I]; }  in operator []()
696   unsigned reset(unsigned NewTop) {  in reset()
701   using BaseType = std::vector<NodeTemplate>;
702   BaseType::iterator begin() { return List.begin(); }  in begin()
703   BaseType::iterator end()   { return List.end(); }  in end()
704   BaseType::const_iterator begin() const { return List.begin(); }  in begin()
705   BaseType::const_iterator end() const   { return List.end(); }  in end()
707   BaseType List;